/* 设置滚动条的样式 */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}
/* 滚动槽 */
::-webkit-scrollbar-track {
    border-radius: 10px;
    background-color: #ddd;
}
/* 滚动条滑块 */
::-webkit-scrollbar-thumb {
    border-radius: 10px;
    background: rgba(0,0,0,0.3);
}
::-webkit-scrollbar-thumb:window-inactive {
    background: rgba(0,0,0,0.3);
}